Another LS swap question

[jus10inbrla]

Everyone and there momma is doing a 5.3 / 4l60 combo. True enough it has more hp & torque than a 5.7 tbi ; but is there any reason why the 6.0 / 4l80 or nv4500 isnt as popular?

For the avg person im assuming this is the most economical. Maybe tow a trailer 5/6 times a yr, and weight is around 4k lbs.

Is the main reason 4l80 not popular is cross bracing / custom tunnel mods ?

Just exploring options as i may have the chance to pick up a 03 cateye for the drivetrain.

 

[Drunkcanuk]

Less 6.0's out there than 5.3's, I think it's that simple. The 4l80's slide right in, no big deal to slide the xmember back a few inches.

 

[L31MaxExpress]

The real question is why is an 8.1L/4L80E swap not more common. It is a much better truck engine than an absolutely gutless 6.0L or 5.3L. An 8.1L is on par with a 6.0L as for fuel mileage and has another ~200 ft/lbs of torque down at 2,000 rpm where you spend 95% of your time driving at.

 

[jus10inbrla]

8.1L/4L80E swap not more common. It is a much better truck engine

Geez u never lied. Had one in a 05 3500; hauled seafood putting around 150k miles on it a year. When we sold it had around 700k on it.

 

[Drunkcanuk]

The real question is why is an 8.1L/4L80E swap not more common. It is a much better truck engine than an absolutely gutless 6.0L or 5.3L. An 8.1L is on par with a 6.0L as for fuel mileage and has another ~200 ft/lbs of torque down at 2,000 rpm where you spend 95% of your time driving at.

Even more rare than a 6.0.
But it's something I'm considering when it's time.

 

[Sean Buick 76]

I would do a 6.0 and NV-4500 it would be great!

 

[0xDEADBEEF]

I'm sure it comes down to cost/availability.

 

[Spareparts]

Around here 6.0 is hard to find and when ya do people think it's a 450lb brick of gold.

 

[618 Syndicate]

Cost. 5.3/4.8 are cheap. You can buy and boost one for the price of a 6.0 around here.

 

[Schurkey]

Perhaps a moderator will move this thread to the "LSX + Carb Swaps" sub-forum.

Everyone and there momma is doing a 5.3 / 4l60 combo. True enough it has more hp & torque than a 5.7 tbi

On paper, maybe. I keep hearing that the older 5.7 Vortec will out-pull a 5.3L.

is there any reason why the 6.0 / 4l80 or nv4500 isnt as popular?

More rare, more money.

Is the main reason 4l80 not popular is cross bracing / custom tunnel mods ?

More rare, more money. I've been looking for a suitable unit for years.